Home Postcode finder TAS Ouse Ouse postcode TAS Ouse is a locality in Tasmania covered by postcode 7140. Postcode 7140 State or territory Tasmania (TAS) Region Tasmania Add a free Ouse business listing More business listings in Ouse Businesses in OuseOuse District High School5800 Lyell Hwy · 03 62871259 Common questionsWhat is the postcode for Ouse?Ouse, TAS has the postcode 7140.What state is Ouse in?Ouse is in Tasmania (TAS).Does postcode 7140 cover more than one suburb?Yes. Postcode 7140 covers 48 localities, so the postcode alone does not identify Ouse. Browse other postcodes in Tasmania, or widen the search to every Australian postcode.